HelloOn youtube some people change the Harbor Freight 90 amp welder to negative gun and to positive ground.They do that by adding capacitor and Bridge rectifier into the circuit.Anyone on this forum ,did you try the change over,did you find the welder any better after the change overmrel.

tweake wrote:the other thing is its still a pos machine which is probably going to die for other reasons. is it worth spending even more money on ?

Some times, inexpensive tools last elephant years no matter how poorly made, how roughly treated, and infrequently used. If the OP only needs to turn a screw every once in a while, why purchase a full set of Snap-On screw drivers? (As an analogy).

tweake wrote:the other thing is its still a pos machine which is probably going to die for other reasons. is it worth spending even more money on ?

Some times, inexpensive tools last elephant years no matter how poorly made, how roughly treated, and infrequently used. If the OP only needs to turn a screw every once in a while, why purchase a full set of Snap-On screw drivers? (As an analogy).

to continue the analogy,the cheap screwdrivers round off after the first dozen screws and you end up stuffing up the screws. its then thrown in the bin and you go buy better screw drivers.

don't get me wrong, i don't mind cheap nasty tools when you know they are just going to get munted anyway.you don't always have to go buy the top brands. i certainly do not have a top brand welder, but its also not as cheap and nasty as that mig.

if you want to do it as a project and see what you can get out of it, go for it. but if you just want a welder that works when you need it, get something better.

btw i see ChuckE2009 has done a couple of vids on cheap welders. worth watching.